On the left you can see the Swell box before cleaning. On the right it has been cleaned and painted. The wooden pipes are the 8 foot Flute. You can also see the Open Diapason, and the Horn at the back.
Above you can see the Great rackboards before and after cleaning. These pictures show a striking contrast. The pipes will now speak quickly, clearly and with better volume.
The pipes are regulated using a sound level meter to ensure equal
tone and volume.